A 30% nominal increase over this decade is roughly a flat budget in real terms. Consumer prices rose on the order of a third over the same period, meaning the boards' purchasing power ended the decade close to where it started while their responsibilities grew.
The comparison is the point. The Future of Community Boards Working Group made the same contrast with an earlier window: the Mayor's Office budget grew 71% from 2014 to 2020 (per the Independent Budget Office) while board budgets stayed flat. A decade later the pattern holds.
Method: Author's analysis of the NYC Open Data Expense Budget dataset. Each series sums adopted appropriations from each fiscal year's adopted budget publication (June of the preceding year): all 59 community board agencies, the Mayoralty (agency 002), and all agencies citywide. Figures are nominal.
Values: Community boards grew from $17.1M (FY2017) to $22.3M (FY2027); the Mayoralty from $122.1M to $196.1M; the citywide budget from $80.3B to $117.8B. The Mayoralty's FY2024 spike reflects that year's adopted budget; it was later modified downward.
Context sources: Future of Community Boards Working Group Final Report (December 2021), citing NYC Independent Budget Office fiscal history data; inflation comparison based on BLS CPI data for the New York area.